Laser Sensors

Enicstra stocks laser-based sensors used where precise small-spot detection or long-range distance measurement is required. Inventory covers laser photoelectric (point-detection with laser beam), laser distance sensors (time-of-flight or phase-shift for long range), laser line sensors (creates a line of light for edge or profile detection), and laser triangulation sensors (precise short-range distance).

Brands carried include Banner Q4X laser-distance, Sick laser sensors (DL, DT, DS), Keyence LR-X, LR-Z, and IL-series, Pepperl+Fuchs PMD time-of-flight, IFM laser distance, and Leuze ODSL. Obsolete laser sensors — discontinued early LR-series, retired DL codes, end-of-life ODSL first generations — are sourced through our supplier network. Each unit is bench-tested and ships with a 12-month functional warranty.

For an obsolete laser sensor, send the OEM part number for a quote within 1–2 business days.

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Laser Sensors

Keyence LV-H35 Reflective Sensor Head, Spot Type, Co-axial Structure

MFR #: LV-H35

$238.02/ea ✓ Available

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Keyence LV-H62 Retroreflective Sensor Head, Spot Type, Standard

MFR #: LV-H62

$667.62/ea ✓ Available

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Buying guide

Choosing Laser Sensors components

Laser sensors are valued for small spot size, long range, and precise edge detection. The trade-offs include sensitivity to ambient light at long range, eye-safety classifications that affect installation requirements, and higher cost than equivalent LED-based sensors. Selection depends on the application precision and range requirements.

Specs to confirm before ordering:

Function: laser photoelectric (point switch), laser distance (analog/digital distance output), laser line/triangulation (profile)
Operating range: short (centimeters to 1 m for laser photoelectric), medium (1–10 m), long (10–100+ m for time-of-flight)
Spot size at the working distance
Laser class: Class 1 (eye-safe under all viewing), Class 2 (eye-safe with blink reflex), Class 3R (precaution required)
Wavelength: 650 nm red (visible, easy to aim), 780 nm or 940 nm IR (invisible, often used for higher power), 405 nm blue/violet (precise small spot)
Output: PNP/NPN switch, analog 0–10 V or 4–20 mA distance, RS-485/IO-Link digital distance
Resolution and repeatability for distance sensors
Response time — important for high-speed applications
IP rating — IP65 standard, IP67 for splash

Common gotchas: Class 2 laser sensors are safe when used as intended but require warning labels and area cordoning during installation. Class 3R adds eye-protection considerations and is rare in standard industrial sensors. Time-of-flight laser distance sensors are excellent at long range but have lower resolution than triangulation at short range — pick the technology by application. Black or matte targets absorb more light than reflective targets, reducing effective range; manufacturer datasheets often show "white target" range and a lower black-target range.

Typical applications: precise edge detection at high speed (laser photoelectric), long-range AGV positioning, web tension and loop control with analog laser distance, hot-target detection in steel mills (where heat ruled out diffuse sensors), and aiming verification (visible red laser for setup convenience). On legacy installations, in-kind laser sensor replacement preserves the laser class, wavelength, and the controller's expected output.

For obsolete laser sensors, send the OEM part number for a sourcing quote.

Related categories Frequently asked questions

Do you stock obsolete laser sensors?

Yes. Discontinued Keyence LR-X first generations, retired Sick DL-series codes, end-of-life Banner Q-series laser early variants, and earlier Leuze ODSL are sourced through our supplier network.

Class 1 vs. Class 2 laser — does it matter for installation?

Class 1 is eye-safe under all conditions and requires no special precautions. Class 2 (red visible, low power) is eye-safe under blink reflex; warning labels are required. Class 3R requires more careful installation including eye protection during aiming. Match the original class when possible.

Time-of-flight vs. triangulation — which is more accurate?

Triangulation has higher resolution at short range (sub-millimeter). Time-of-flight extends to longer range (10–100 m) with millimeter to centimeter resolution. Choose by application: thickness gauging uses triangulation, AGV positioning uses time-of-flight.

Will the sensor read black or dark targets?

Most laser distance sensors are rated for both white and black targets with reduced range on dark targets. Datasheets show both. If your target is very dark or absorbent, verify the rated range on the actual target reflectivity.

Can I substitute IR for visible red laser?

Same range performance typically. Visible red helps with installation alignment because you can see the beam; IR is sometimes used to avoid distracting operators in dark environments. Confirm the controller's spectral filter (if any) is compatible.

What is the warranty?

12-month functional warranty. Damage to optical surfaces or laser source from improper cleaning, impact, or operation outside rated temperature is not covered.